CN101969757A - Reverse osmosis irrigation - Google Patents
Reverse osmosis irrigation Download PDFInfo
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- CN101969757A CN101969757A CN200980106277XA CN200980106277A CN101969757A CN 101969757 A CN101969757 A CN 101969757A CN 200980106277X A CN200980106277X A CN 200980106277XA CN 200980106277 A CN200980106277 A CN 200980106277A CN 101969757 A CN101969757 A CN 101969757A
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- water
- irrigating
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/04—Tubular membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/08—Polysaccharides
- B01D71/12—Cellulose derivatives
- B01D71/14—Esters of organic acids
- B01D71/16—Cellulose acetate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A plant watering device (10) is disclosed. The device (10) has a preferentially water permeable membrane (12) arranged to separate a supply of water (22) from a root system (24) of a plant. The membrane is arranged to allow water (22) to permeate to water the roots (24).
Description
Technical field
The present invention relates generally to the plant irrigation method, especially but not exclusively relate to the method for irrigating plant through the water of reverse-osmosis treated of utilizing.
Background technology
In many agricultural regions, existing in a large number underground water drilling well is connected to the water-bearing layer of containing brackish water.Brackish water is meant that the concentration of dissolving salt surpasses the term of the water of 2000mg/L usually.Salinity can be represented with electrical conductivity (EC).EC is that being used for of measuring in irrigating operation determined to plant and the soil application water parameter of safety whether.Usually, to be used for continuing to irrigate be unsafe in the EC underground water drilling well that surpasses every centimetre of 3000 little Siemens.
Use brackish water to irrigate and have three kinds of conventional methods.At first, can directly use brackish water.Obviously can there be the problem of plant to the susceptibility of salt in this, builds up with control salt thereby cause productive rate reduction and needs to filter soil profile, and this salt accumulation can cause drainage problem.Finally, owing to destruction, productive rate reduction and draining difference to soil make this solution not attractive.
Secondly, attempted irrigating combination or replacing brackish water irrigation with fresh water.This requires accurately control water mixed style, can not eliminate all problems that productive rate reduces and need filter with from root district desalination.
The 3rd, proposed to force water to carry out desalination, as preparing the method that suitable quantity of water continues irrigation by semipermeable membrane by the brackish water at semipermeable membrane rear is exerted pressure.Be stored in desalted water in the water tank and then the standard irrigating facility of utilization is carried.Usually, this meeting is owing to following a plurality of engineering science reasons cause water price Ge Gaoang:
Counter-infiltration system need comprise the additional facilities of special-purpose supply pump, cleaning systems and electric energy, electric energy or from generator or be connected to distributed power source.
The reverse osmosis supply pump is under high pressure operated.
Thereby the operating condition in the membrane module makes system be easy to take place the salt precipitation causes incrustation and obstruction.
Fund cost and operating cost height.
Summary of the invention
According to a first aspect of the invention, provide a kind of irrigating plant device, comprising:
Preferential water permeable membrane, it is arranged to make the root system of supplying with water and plant to separate, and described film is arranged to allow water to see through root with irrigating plant.
In certain embodiments, described film be arranged to respond soil and/the root flow of water and allow water to pass through.
In certain embodiments, described supply water contains the salt of dissolving.Described supply water can be brackish water.
In certain embodiments, described film has the selectivity conveying characteristic to water and salt.Described film can be a reverse osmosis membrane.Described film can be the cellulose basement membrane.Described film can be a CAM.Alternatively, described film can be prepared by synthon and polymer.Described film can be the densified polymer film.Described film can be a PA membrane.Described film can be by chemical modification to obtain best water and salt conveying characteristic.Alternatively, described film can be ultrafiltration and/or NF membrane.
In certain embodiments, to be arranged to be degradable and/or soluble to described film.Described film is degraded after can being arranged in a crop cycle.Can finish degradation process in position by when crop cycle finishes, adding chemicals.Alternatively, can finish degradation process in position by when the watering period finishes, adding chemicals.
In certain embodiments, described film is configured to conduit.Described conduit can be arranged to along the conduit transporting water.Thereby described film can comprise the opposite edges of the formation conduit that combines.Described edge can come fusion by means of thermal anneal process.Can utilize bonding agent that opposite edges are combined.
In certain embodiments, described device comprises permeable conduit, and described film is associated with described conduit.Described film can serve as a contrast in described conduit.Described conduit can be configured to promote turbulization near the water of film.Described conduit can comprise one or more features, and described feature is configured as described film and is used to promote turbulent flow to produce.Described feature can comprise fold.Described feature can comprise protrusion.Described feature can comprise depressed part.Described feature can be positioned near the described film.
In certain embodiments, described conduit can be provided with to provide irrigation water to annual crop buriedly.Alternatively, described conduit can be set to be used for lasting plantation application.
In certain embodiments, described device can comprise droping irrigating pipe.Described droping irrigating pipe can be configured to drip irrigation belt or porous polymer pipeline.
In certain embodiments, described device construction becomes to promote turbulization near the water of film.Described film can be configured to promote turbulent flow to produce.Described film can comprise the surface that is configured to promote the turbulent flow generation.Described surface can comprise the feature that is used to promote the turbulent flow generation.Described surface can comprise one or more folds.Alternatively, described film is arranged on following structure periphery, and described structure is configured to promote turbulization near the water of film.Described structure can comprise framework.Described framework can comprise the material except the material that constitutes described film.Described material can comprise polymer or other suitable material arbitrarily.
Should be understood that fold can constitute in many different modes.Described fold can be parallel.Described fold can be arranged to spiral pattern.Described fold can be intersected with each other.Described fold can be arranged to the crosshatch pattern.Described fold can intersect with being perpendicular to one another.Described fold can extend abreast with the nominal center axis of conduit.Alternatively, described fold can extend with described axis normal ground.Alternatively, described surface comprises protrusion and/or depressed part.
In certain embodiments, between described film and described conduit, there are one or more intermediate layers.
In certain embodiments, described film has two facing surfaces and the contact of a surface arrangement Cheng Keyu supply water.Another surface can be arranged to contact with the low medium of water capillary medium or the flow of water.Described capillary medium can comprise conduit.
In certain embodiments, described capillary medium comprises the capillary medium part that described plant roots or root system are provided support.Described water capillary medium can comprise soil or soil analog.Described water capillary medium can be an inertia.Described water capillary medium can comprise green waste material.Described water capillary medium can comprise coarse sand.Described water capillary medium can comprise fine sand.Described water capillary medium can comprise compost hardwood sawdust (composted hardwoodsawdust).
In certain embodiments, the pressure of little salty supply water can be at environmental stress to several atmospheric pressure range.
In certain embodiments, described device comprises that water keeps material.Described water keep material can be porous, class sponge or class soil.
In certain embodiments, described film can be seen through by the fertilizer chemicals.Described water can be the water that contains fertilizer.Described chemicals can comprise nitrate.Described chemicals can comprise phosphate.Described film can be designed as with different speed and carries nitrate and phosphate.
According to a second aspect of the invention, provide a kind of droping irrigating pipe, comprising: the preferential water permeable membrane that is configured to conduit.
According to a third aspect of the invention we, provide a kind of droping irrigating pipe, comprising:
Permeable conduit; And
The preferential water permeable membrane that is associated with described conduit.
In certain embodiments, described film is positioned at described conduit.Described film can serve as a contrast on the inner surface of described conduit.Alternatively, described film can serve as a contrast on the outer surface of described conduit.
According to a forth aspect of the invention, provide a kind of irrigation system, comprising:
According to second aspect present invention or the described droping irrigating pipe of the third aspect, it contacts with soil or soil analog.
Described system can also comprise: the source of supply of the brackish water in the described conduit, the pressure of described water at environmental stress to several atmospheric scopes.
According to a fifth aspect of the invention, provide a kind of method of irrigating plant, comprise the steps:
The brackish water source is provided;
Provide according to second aspect present invention or the described droping irrigating pipe of the third aspect;
At least a portion of described droping irrigating pipe is arranged on soil or the soil analog top or inner that described plant is provided support; And
Described brackish water is gone into the described droping irrigating pipe from described brackish water source and course.
The pressure of the brackish water in the described conduit at environmental stress to several atmospheric scopes.
According to a sixth aspect of the invention, provide a kind of method of making droping irrigating pipe, comprise the steps:
Permeable conduit is provided; And
Near the inner surface of described conduit, form preferential water permeable membrane.
According to a seventh aspect of the invention, provide a kind of method of irrigating plant, comprise the steps:
The soil that utilizes plant root and/or described plant root is provided support or the flow of water of soil analog will be supplied with the water suction by preferential water permeable membrane.
Description of drawings
In order to understand essence of the present invention better, only embodiment is described below with reference to the accompanying drawings in the mode of example, wherein:
Fig. 1 illustrates the cutaway view of the irrigating plant device embodiment in the soil of burying the crop below;
Fig. 2 illustrates the cutaway view of the embodiment of droping irrigating pipe, and this droping irrigating pipe is configured to promote turbulization in flowing through the fluid of droping irrigating pipe, and wherein, conduit is identical with film;
Fig. 3 illustrates the cutaway view of another embodiment that is configured to promote the droping irrigating pipe that turbulent flow produces, and wherein, film serves as a contrast in conduit;
Fig. 4 illustrates the parallel fold pattern that being used among another embodiment of droping irrigating pipe promotes that turbulent flow produces;
Fig. 5 illustrates the crosshatch pleated pattern that being used among another embodiment of droping irrigating pipe promotes that turbulent flow produces;
Around illustrating, Fig. 6 is provided with an embodiment of the structure of film;
Fig. 7 illustrates the plane of another embodiment of irrigating plant device; And
Fig. 8 illustrates the end view of the inwall of Fig. 2 embodiment that comprises film.
Embodiment
An embodiment of irrigating plant device shown in Figure 1, and this irrigating plant device entirety by reference numeral 10 is represented.In this embodiment, this irrigating plant device has the preferential water permeable membrane (preferentially water permeable) (with vertical line represent) of small pieces of cloth used for patches in permeable conduit 14.Yet in another embodiment, conduit is identical with film.In these embodiments, conduit 14 is droping irrigating pipes.Conduit as shown in Figure 1 can be carried water outlet 20 from film 12.Conduit 14 is air blown polyethylene pipes.Conduit 14 can be at one end 15 sealings or be communicated with water source 22 at two ends alternatively.Irrigation conduit 14 is buried kind at least in part and is implanted with in the soil 16 in the arable land of plant 18 grades for example.Conduit 14 carryings contain the brackish water 20 such as dissolving salts such as sodium chloride.Conduit 14 is connected to the water source 22 that replenished by the open water supply of brackish water and by water source 22 gravity water supplies.Water is not exerted pressure specially and is not needed pressure greater than water 20 is transported to pressure required in the conduit 14 in this embodiment.Usually, as in the present embodiment, hydraulic pressure at about environmental stress in up to several atmospheric scopes.Yet in some optional embodiment, irrigating plant device 10 can comprise the low-pressure pump that is used for water 20 is transported to conduit 14.Film 12 makes the brackish water 20 that is supplied in the conduit separate with the root system 24 of plant 18.
In this embodiment, underground drip irrigation pipeline 14 with brackish water at least in part demineralization and/or desalination to provide to plant 18 than fresh water (fresher water).Should be understood that along with the membrane technology that can be applied to the irrigating plant device becomes better, droping irrigating pipe can be with greatly desalination of salt solution.Desalination utilizes the counter osmosis of water 20 process films 12 to realize.12 pairs of water of film 20 and the salt that is dissolved in the water have the selectivity conveying characteristic.Reverse-osmosis treated is not mainly as seawater desalination equipment to carry out by water 20 is exerted pressure, for example the seawater desalination equipment of building at Sydney Kurnell of operating to 70 crust hydraulic pressure or the atmospheric pressure at 40 crust.Fortunately, the brackish water desalination is needed less pressure, 2 to 17 atmospheric pressure.The water potential gradient of impelling reverse osmosis to take place is in the present invention provided by soil 16 and plant root 24, and the flow of water of soil 16 and plant root 24 is all significantly less than the flow of water of brackish water 20 itself.However, it is to be understood that in certain embodiments, exerting pressure to a certain degree is useful.
From another point of view, be diffused into being sucked away than fresh water of outer surface place of film 12 under the capillarity as the soil 16 of good capillary medium (wicking medium), water 20 is ordered about by osmosis to enter in the root 24 then.The flow of water of the root flow of water than soil usually is low.This further promotes the clean conveying that the molecule of water 20 passes film 12.The flow of water does not promote salt to pass the conveying of film 12, so salt is limited in supplying with in the water 20 basically.
In the normal running of this embodiment, the rising water loss of plant 18 makes the low flow of water 16 appear at 24 places, root surface.This works and water is drawn to root 24 from soil 16.When near the soil the root 16 is drained,, this soil absorbs water from the farther place thereby also presenting the low flow of water.The representative value of this flow of water extremely-15 clings in the scope of (permanent wilting point) at-0.1 crust (field capacity).About-3 crust are enough to keep enough water fluxes (water flux) to-5 root flows of water of clinging to and pass film 12.This is in the normal condition of plant fully.
Because thereby plant 18 produces pressure gradients with water sucking-off irrigation conduit 14, therefore only in the active position sucking-off of plant root 24 than fresh water 20.The remainder that this means pipeline 14 is because water potential gradient inwardly and not is discharged into water in the soil 16.Therefore, will be minimum from building up in the soil 16, and the slight solute that can cause by means of the rainwater by chance move and easily controls salt and build up than the salt of fresh water.
Especially in the conduit embodiment identical with film, the drip irrigation belt is the suitable form that pipeline adopts, and this is because the drip irrigation belt can leave from the spool at hauling machine rear and enter the ready groove.
Fig. 2 illustrates the cutaway view of an embodiment of whole droping irrigating pipe by Reference numeral 130 expressions, and wherein, conduit and film are same parts and by Reference numeral 132 expressions.Droping irrigating pipe 130 can be formed by for example cellulose or other any suitable membrane material.That is to say that film is configured to conduit.Conduit has nominal center axis 135.Droping irrigating pipe 130 can form by for example following steps: at first film is poured into sheet material, the opposite edges of sheet material are bonded together and then the edge is fixed together to form conduit.The fixing of edge can be by for example heating and/or anneal or realize by means of the use bonding agent.Film 132 is configured to promote turbulent flow to appear near the film 132 in the droping irrigating pipe 130 the fluids stream.In this example, surface 133 comprises following feature, and this feature adopts the form of for example fold 134 that promotes that turbulent flow produces.Fold 134 can have various structures, for example parallel and crooked fold 136 among Fig. 4 or for example interfolding 138,140 of the formation crosshatch pattern among Fig. 5.
Fig. 3 illustrates the cutaway view of integral body by another embodiment of the droping irrigating pipe of Reference numeral 142 expressions, and this droping irrigating pipe has the conduit 144 that small pieces of cloth used for patches has film 146.Conduit comprises following feature, and this feature adopts the form of fold 148 to make film 146 be configured as the promotion turbulent flow and produces.In this example, film is configured as and has fold.
Certainly, should be understood that, can for example protrusion or depressed part wait and replace fold by arbitrary characteristics that can turbulization.
In some optional embodiment, film is formed on following structure periphery, and this structure is constructed to promote turbulization near film the fluid stream.An example of this structure is shown in Figure 6 and wholely represented by Reference numeral 150.In the structure of this embodiment, structure adopts the form of framework.This framework can be formed by the material except the material of film, more for example other polymer or other suitable material.
In embodiment as shown in Figure 4 and Figure 5, for example, irrigation conduit can at one end not seal, and by this pipeline pump up water, and can make water be back to source of supply 22.Can for example pass through pipeline with the speed pump up water in 0.05 metre per second (m/s) to 0.5 metre per second (m/s) scope.Turbulent flow helps to prevent to build up higher salinity near the film, and high salinity can reduce salt and pass the clean percent of pass (net passage) that film enters soil matrix.This can also improve the speed that water diffuses through film.
In the modification of as shown in Figure 1 embodiment, film l 2 preferably makes and is dissolved in the fertilizer chemicals of supplying with in the water 20 and sees through.This chemicals can comprise nitrate and/or phosphate, and film 12 can be selected as making nitrate to see through so that best salt delivery ratio to be provided to plant 18 than phosphate is easier.
An embodiment of droping irrigating pipe for example shown in Figure 1 can make by providing water-permeable pipe to form preferential water permeable membrane 12 then near the inner surface of conduit 14.Film 12 can utilize following technology to deposit: for example interface polycondensation, interfacial polymerization (soak into the surface with monomer and carry out polymerization then) and to make polymer be the phase inversion of solid phase from liquid-phase conversion.Microporous barrier can utilize the various proprietary technologies of handling based on inversion of phases cast (phase inversion casting) to be formed by organic polymer cast or the system of revolving.In inversion of phases is handled, make good solvated polymer precipitation or " gelation " be solid film.Can be by causing that with the reaction of non-solvent or by temperature polymer is from solvation state (liquid state) to solid-state phase transformation.For example, the crystalline state cellulose acetate is dissolved in the mixture of acetone and pyridine, is deposited as microporous barrier at the interface then between the organic solvent and the aqueous solution.For polypropylene, observe similar phase transformation, its form with solvation under surpassing 150 ℃ temperature is present in the organic solvent, and changes crystal form under 150 ℃ temperature.
Fig. 7 and Fig. 8 illustrate plane and the inside elevation view of another embodiment of irrigating plant device 100.This device has for example ten the jar parts such as 102 and 104 that are furnished with soil or soil analog.Then, plant (for example Apollo tomato plants (Apollo tomatoplant)) is planted in the soil that the root system to plant provides support.Each jar part comprises sidewall 106, and sidewall 106 comprises membrane portions 120, and membrane portions 120 has two facing surfaces 122 and 124.Surface 122 is arranged to and can be contacted with the little salty supply water of a raceway groove in two raceway grooves 128.Another surface 124 is arranged to and can contacts with capillary medium.With P﹠amp; The S crystalline p p sheet is installed in the soil side of device to reduce the risk that root architecture penetrates film 120.Soil or soil analog contact with crystalline p p sheet in jar part 102.Similarly, film 120 by means of the counter osmosis that impelled by plant itself with brackish water be treated to be transported in jar part 102 than fresh water.The source of supply of brackish water 128 can comprise that thereby the water as similar sponge or class earth materials keeps material to be particularly useful for anti-sealing and overflows.
More particularly, in this embodiment, this device 100 is made of the 8mm lucite.In lucite, cut out the window that is of a size of 60mm * 60mm.Window all has the O shape ring recess that grinds out around the hole so that water-tight seal to be provided when film 120 is arranged in correct position.Each window has organic glass frame with fixing film, and lucite is made by the 4.5mm lucite that produces.
Example
In an experiment of being carried out by the applicant, the Apollo tomato plants is planted in jar part 102.Do not use other nutriment or insecticide at whole experimental session.
With 20 (20) rise 3000ppm salting liquid (2.5g/L sodium chloride, 0.2g/L calcium carbonate and 0.5075g/L magnesium sulfate) filling planting case (plant box) each the pouring raceway groove 128.Utilize drinkable running water relatively to repeat this experiment as benchmark.Irrigation solution and flume 128 turn back to this level when finish every day.
In device 100 cellulosic ultrafiltration membrane (pore size is the Millipore Hydrophilic #GSWP 090 25GS filter type of 0.22 μ m) that mixes on probation and reverse osmosis membrane (FILMTEC BW30) both.In all cases, the tomato plants well-grown, this is limited by the number of sheets and fruit yield.
Soil analog in each jar part 102 comprises 50% recovery green waste material, 20% soil, 10% coarse sand, 10% fine sand (botany sand) and 10% compost hardwood sawdust.The soil analog can be an any appropriate analog such as water culture medium (hydroponic medium) or some other inert medias for example.The soil analog can be foam or other porous material.
After having described embodiment, should be understood that some embodiment have following advantage:
Can with the good brackish water of many occasion supply situations as the plantation plant than freshwater source.
Thereby can carry out the needs of gravity water supply minimizing to droping irrigating pipe to machines such as electric energy and for example pumps.
Not needing that brackish water is carried out preliminary treatment utilizes irrigation conduit to irrigate plant.
Counter-infiltration system does not need brackish water is exerted pressure to the required degree of seawater desalination equipment.
Reverse-osmosis treated almost completely is subjected to ordering about of plant and soil.
Droping irrigating pipe is to be suitable for very much the linear geometry that the many row crops or the plant of plantations such as farm, orchard are irrigated is constructed.
Only thereby supply water prevents heavy irrigation when plant needs, and the heavy irrigation meeting destroys soil or makes mineralization.
Can carry fertilizer.
Pipeline can be degraded when no longer needing, rather than becomes pollution source or need remove, and the process of removing may be time-consuming and/or expensive.
Can use multiple film type to satisfy situation as requested.
Utilize turbulent flow to improve performance.
The invention is not restricted to from little salty drilling well water supply than fresh water.For example, the present invention can be used for removing pollutant or other dissolved substance of supplying with water.Supplying with water can be from industrial equipment, and the present invention can be used for using any place of non-water source of fresh water.
Should be understood that, can shown the present invention carries out various modifications and/or modification to specific embodiment under the situation in not breaking away from the spirit or scope of the present invention that broad sense limits.For example, can exert pressure to strengthen counter osmosis to brackish water.Film can cover brackish water pond or groove, is furnished with soil on the film.A plurality of pipelines can be arranged or make up to increase the fresh water conveying capacity.Pipeline can coil planar.Pipeline for example can be coiled into the helical form arrangement so that be arranged in the plant growing container.Therefore, should think that all aspects of these embodiment are exemplary and not restrictive.
Claims (19)
1. irrigating plant device comprises:
Preferential water permeable membrane, it is arranged to make the root system of supplying with water and plant to separate, and described film is arranged to allow water to see through root with irrigating plant.
2. irrigating plant device according to claim 1, wherein,
Described film be arranged to respond soil and/the root flow of water and allow water to pass through.
3. irrigating plant device according to claim 1, wherein,
Described supply water contains the salt of dissolving.
4. irrigating plant device according to claim 1, wherein,
Described film has the selectivity conveying characteristic to water and salt.
5. irrigating plant device according to claim 1, wherein,
It is degradable or soluble that described film is arranged to.
6. irrigating plant device according to claim 1, wherein,
Described film is associated with described conduit.
7. irrigating plant device according to claim 6, wherein,
The described conduit of described film small pieces of cloth used for patches.
8. irrigating plant device according to claim 6, wherein,
Described conduit is a droping irrigating pipe.
9. irrigating plant device according to claim 1, wherein,
Described film has two facing surfaces and the described supply water contact of surface arrangement Cheng Nengyu.
10. irrigating plant device according to claim 9, wherein,
The medium contact that another surface arrangement Cheng Yushui capillary medium or the flow of water are low.
11. irrigating plant device according to claim 1, wherein,
Described film can be seen through by the fertilizer chemicals.
12. irrigating plant device according to claim 1, it is configured to promote turbulization in described water.
13. a droping irrigating pipe, it comprises the preferential water permeable membrane that is configured to conduit.
14. a droping irrigating pipe comprises:
Permeable conduit; And
The preferential water permeable membrane that is associated with described conduit.
15. an irrigation system comprises:
According to claim 13 or 14 described droping irrigating pipes, it contacts with soil or soil analog.
16. irrigation system according to claim 15 also comprises:
The brackish water source of supply.
17. a method of irrigating plant comprises the steps:
The brackish water source is provided;
Provide according to claim 14 or 15 described droping irrigating pipes;
At least a portion of described droping irrigating pipe is arranged on soil or the soil analog top or inner that described plant is provided support; And
Described brackish water is gone into the described droping irrigating pipe from described brackish water source and course.
18. a method of making droping irrigating pipe comprises the steps:
Permeable conduit is provided; And
Near the inner surface of described conduit, form preferential water permeable membrane.
19. the method for an irrigating plant comprises the steps:
The soil that utilizes plant root and/or described plant root is provided support or the flow of water of soil analog will be supplied with the water suction by preferential water permeable membrane.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2008900899A AU2008900899A0 (en) | 2008-02-25 | Reverse Osmosis Irrigation | |
| AU2008900899 | 2008-02-25 | ||
| PCT/AU2009/000206 WO2009105808A1 (en) | 2008-02-25 | 2009-02-25 | Reverse osmosis irrigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101969757A true CN101969757A (en) | 2011-02-09 |
Family
ID=41015426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980106277XA Pending CN101969757A (en) | 2008-02-25 | 2009-02-25 | Reverse osmosis irrigation |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8950976B2 (en) |
| EP (1) | EP2249632A4 (en) |
| CN (1) | CN101969757A (en) |
| AU (1) | AU2009219090B2 (en) |
| IL (1) | IL207756A0 (en) |
| IN (1) | IN2010MU01986A (en) |
| MX (1) | MX2010009277A (en) |
| WO (1) | WO2009105808A1 (en) |
| ZA (1) | ZA201006089B (en) |
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| CN105210821A (en) * | 2015-09-04 | 2016-01-06 | 张洪荣 | A kind of method that automatic control is watered and device |
| CN106613280A (en) * | 2017-01-11 | 2017-05-10 | 杭州花泽园艺工程有限公司 | Medium-sized hedge plant planting method |
| CN110235550A (en) * | 2019-07-17 | 2019-09-17 | 碧菲分离膜（大连）有限公司 | A kind of circular slight irrigation and soil improvement system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012212400A1 (en) * | 2011-02-04 | 2013-09-19 | The University Of Sydney | A plant watering device |
| CA2775140A1 (en) | 2012-04-17 | 2013-10-17 | Canplas Industries Ltd. | Moisture responsive irrigation method and apparatus |
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2009
- 2009-02-25 WO PCT/AU2009/000206 patent/WO2009105808A1/en active Application Filing
- 2009-02-25 EP EP09714421.6A patent/EP2249632A4/en not_active Withdrawn
- 2009-02-25 US US12/919,211 patent/US8950976B2/en not_active Expired - Fee Related
- 2009-02-25 CN CN200980106277XA patent/CN101969757A/en active Pending
- 2009-02-25 AU AU2009219090A patent/AU2009219090B2/en not_active Ceased
- 2009-02-25 MX MX2010009277A patent/MX2010009277A/en unknown
- 2009-08-26 ZA ZA2010/06089A patent/ZA201006089B/en unknown
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2010
- 2010-08-23 IL IL207756A patent/IL207756A0/en unknown
- 2010-09-21 IN IN1986MU2010 patent/IN2010MU01986A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105210821A (en) * | 2015-09-04 | 2016-01-06 | 张洪荣 | A kind of method that automatic control is watered and device |
| CN105210821B (en) * | 2015-09-04 | 2018-02-06 | 张洪荣 | A kind of method and device for automatically controlling watering |
| CN106613280A (en) * | 2017-01-11 | 2017-05-10 | 杭州花泽园艺工程有限公司 | Medium-sized hedge plant planting method |
| CN110235550A (en) * | 2019-07-17 | 2019-09-17 | 碧菲分离膜（大连）有限公司 | A kind of circular slight irrigation and soil improvement system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2009219090B2 (en) | 2014-08-21 |
| US20110070028A1 (en) | 2011-03-24 |
| AU2009219090A1 (en) | 2009-09-03 |
| EP2249632A1 (en) | 2010-11-17 |
| US8950976B2 (en) | 2015-02-10 |
| ZA201006089B (en) | 2011-10-26 |
| MX2010009277A (en) | 2010-09-28 |
| EP2249632A4 (en) | 2014-07-30 |
| IL207756A0 (en) | 2010-12-30 |
| IN2010MU01986A (en) | 2011-02-04 |
| WO2009105808A1 (en) | 2009-09-03 |
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